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iPhone batteries compared: Capacity, mAh and watt hours for every iPhone

Macworld Battery life is one of the most important factors when choosing which iPhone to buy. Measuring iPhone battery life in straight hours of real-world usage (as Apple likes to do) is not an accurate metric for comparison purposes as so many use and environmental factors play a part. Here at Macworld we run our own battery life tests, which should give you a more accurate representation of how long the battery in your iPhone will last. In the table below you can see battery life (in minutes). Another way to gauge battery life is to look at the technical specifications to find out the battery capacities of each iPhone. Unfortunately, Apple is notoriously secretive about these battery specifications, mainly because smartphones from rivals such as Samsung boast much larger battery capacities. The only way to discover the battery capacities is by ripping the battery out of the phone and checking the specifications printed there. Below you will find a list and explanation of the battery capacities of every iPhone from 2007s original iPhone to the very latest iPhone 18 series, including the iPhone Air and Duo. The Duo capacity is estimated and well update when we know for sure after its release. iPhone battery life tests This chart shows that there is a clear and impressive increase in battery life over time. Battery capacity has grown significantly, doubling from the iPhone 8 to the iPhone 17, and going even further in the latest Pro and Pro Max iPhones. But battery life has extended much more than that, with the iPhone 17 running the same test, at the same brightness, lasting over five times as long as the iPhone 8! Bear in mind that screen size has increased quite a bit over this time, too. For more details about our battery life tests of every iPhone from the iPhone X to the iPhone 16 Pro Max see: How much the iPhones battery life has improved. iPhone mAh and Wh: whats the difference? We can look at the straight technical specifications to find out the battery capacities of each iPhone, but as mentioned above, to do so requires opening up the iPhone to see the details on the battery itself. Battery capacity is measured in either Milliamp Hours (mAh) or Watt Hours (Wh). Milliamp hours are a measure of electrical charge, while a watt-hour is equal to one watt of energy consumed for one hour of time. And it is the energy consumed that matters when were measuring actual battery life. Learn how to properly charge a phone battery . Wh is a more accurate and consistent way to compare the total amount of energy that similar types of batteries can store. And its all about the battery voltage, which mAh ignores, which determines the wattage (power) of a battery. If the mAh is the same, the higher the voltage, the greater the actual stored power. Volts (V) are a measure of electric pressure. Amps (A) are a measure of current. Multiply V x A and you get Watts (W) that are a measure of power. So V A = W . You can convert watt hours (Wh) to milliamp hours (mAh) using this formula: (Wh x 1,000) divided by V = mAh . The lithium batteries that power most portable electronics have a voltage of about 3.6V, but some external battery packs (such as Apples 7.62V MagSafe Battery Pack) boast a higher voltage, which means they actually carry more power than their mAh implies. Here we list the battery capacity of every iPhone ever released in both mAh and Wh. iPhone battery capacities Here is the mAh and Wh for every iPhone ever made. iPhone mAh Wh iPhone 1,400mAh 5.18Wh iPhone 3G 1,150mAh 4.25Wh iPhone 3GS 1,200mAh 4.44Wh iPhone 4 1,420mAh 5.3Wh iPhone 4s 1,432mAh 5.3Wh iPhone 5 1,440mAh 5.45Wh iPhone 5c 1,510mAh 5.73Wh iPhone 5s 1,560mAh 5.92Wh iPhone 6 1,810mAh 6.9Wh iPhone 6s 1,715mAh 6.91Wh iPhone 6s Plus 2,750mAh 10.45Wh iPhone SE 1,624mAh 6.21Wh iPhone 7 1,960mAh 7.45Wh iPhone 7 Plus 2,900mAh 11.1Wh iPhone 8 1,821mAh 6.96Wh iPhone 8 Plus 2,961mAh 10.28Wh iPhone X 2,716mAh 10.35Wh iPhone XR 2,942mAh 11.16Wh iPhone XS 2,658mAh 10.13Wh iPhone XS Max 3,174mAh 12.08Wh iPhone 11 3,110mAh 11.91Wh iPhone 11 Pro 3,046mAh 11.67Wh iPhone 11 Pro Max 3,969mAh 15.04Wh iPhone SE 2 1,821mAh 6.91Wh iPhone 12 mini 2,227mAh 8.57Wh iPhone 12 2,815mAh 10.78Wh iPhone 12 Pro 2,815mAh 10.78Wh iPhone 12 Pro Max 3,687mAh 14.13Wh iPhone 13 mini 2,438mAh 9.34Wh iPhone 13 3,240mAh 12.41Wh iPhone 13 Pro 3,095mAh 11.97Wh iPhone 13 Pro Max 4,352mAh 16.75Wh iPhone SE 3 2,018mAh 6.96Wh iPhone 14 3,279mAh 12.68Wh iPhone 14 Plus 4,325mAh 16.68Wh iPhone 14 Pro 3,200mAh 12.38Wh iPhone 14 Pro Max 4,323mAh 16.68Wh iPhone 15 3,349mAh 12.98Wh iPhone 15 Plus 4,383mAh 16.95Wh iPhone 15 Pro 3,274mAh 12.70Wh iPhone 15 Pro Max 4,422mAh 17.11Wh iPhone 16 3,561mAh 13.7Wh iPhone 16 Plus 4,674mAh 18Wh iPhone 16 Pro 3,582mAh 13.8Wh iPhone 16 Pro Max 4,685mAh 18Wh iPhone 16e 3,961mAh 15.55Wh MagSafe Battery Pack 1,460mAh 11.13W iPhone 17 3,692mAh 14.5Wh iPhone 17 Pro 3988mAh 15.53Wh iPhone 17 Pro (eSIM) 4,252mAh 16.56Wh iPhone 17 Pro Max 4823mAh 18.75Wh iPhone 17 Pro Max (eSIM) 5,088mAh 19.77Wh iPhone Air 3,149mAh 12.4Wh iPhone 17e 4005mAh 15.6Wh iPhone 18 Pro 4056mAh 15.86Wh iPhone 18 Pro (eSIM) 4288mAh 16.76Wh iPhone 18 Pro Max 5391mAh 21.06Wh iPhone 18 Pro Max (eSIM) 5567mAh 21.75Wh iPhone Duo 5400mAh Unknown Check out the best iPhone chargers and USB-C iPhone charge cables in our test results. Is your iPhone battery living up to its potential? Find out How to check iPhone battery health and find out how and when to replace it . Got an iPad? Read 12 power tips for longer iPad battery life

18 Sep 2026 6:45 pm